What does monetary policy involve?单项选择题

a. Deciding the way in which government taxation will be redistributed in the economy, to achieve high levels of income equality of all citizens.

b. Planning the ways in which government taxation revenue will be spent, for example on infrastructure projects, public services and welfare payments, in order to achieve economic prosperity.

c. Setting the cash rate to influence other interest rates in the economy, affecting the behaviour of borrowers and lenders, economic activity, and ultimately the rate of inflation.

d. Making decisions to adjust income and other taxation rates in the economy, to influence the level of disposable income of consumers, to influence aggregate demand.